---
title: "Visual Debugger"
canonical: "https://documentation.chaos.com/space/VMAYA/111740120/Visual%20Debugger"
format: markdown
---
This page provides information on the Visual Debugger tool in V-Ray for Maya. 


## **Overview**

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## **Workflow**

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## **Known Issues and Limitations**

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- A maximum of 64 camera rays are stored. This means that the first 64 rays that finish shading are written, the rest are discarded. This is highly non-deterministic but the limitation is needed in order to maintain good performance during both rendering and debugging.
- A debug render does a full render including export.
- The debug information is displayed in the VFB after the end of the render process, so it's not useful in IPR.
- When the debug tool and Light Cache GI are both enabled, Light Cache is built at full resolution overriding the current render region.
- The ray contribution for secondary rays is incorrect.
- The debug tool is available with V-Ray CPU only.
- Only physical and pinhole cameras are supported.
- Incorrect ray clipping in physical camera may occur. Some environment hits are fully clipped incorrectly.
- Camera rays may have unknown ray and hit type.
- Unknown volume rays may occur.